diff --git a/libsmartcols/docs/libsmartcols-docs.xml b/libsmartcols/docs/libsmartcols-docs.xml
index bd0d76659..dfdd46e01 100644
--- a/libsmartcols/docs/libsmartcols-docs.xml
+++ b/libsmartcols/docs/libsmartcols-docs.xml
@@ -65,4 +65,8 @@ available from https://www.kernel.org/pub/linux/utils/util-linux/.
     <title>Index of new symbols in 2.30</title>
     <xi:include href="xml/api-index-2.30.xml"><xi:fallback /></xi:include>
   </index>
+  <index role="2.31">
+    <title>Index of new symbols in 2.31</title>
+    <xi:include href="xml/api-index-2.31.xml"><xi:fallback /></xi:include>
+  </index>
 </book>
diff --git a/libsmartcols/src/table.c b/libsmartcols/src/table.c
index 2a9fd1778..979a09a39 100644
--- a/libsmartcols/src/table.c
+++ b/libsmartcols/src/table.c
@@ -154,7 +154,7 @@ const char *scols_table_get_name(const struct libscols_table *tb)
  * title output alignment on non-tty is hardcoded to 80 output chars. For the
  * regular terminal it's based on terminal width.
  *
- * Returns: Title of the table, or %NULL in case of blank title.
+ * Returns: Title of the table, or NULL in case of blank title.
  *
  * Since: 2.28
  */